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Thanks to the recommendation votes of the fake Burmese Xiaoliu, the 20100706 of reading, the god 456, and the 161226115906898 of book friends.

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Later, they also visited the Military Research Institute of the Steel Castle.

In conjunction with the military personnel and scientific research and technical personnel of Shenwuguan, several very advanced weapons and equipment are being developed here. Including exoskeletons, small power mechs, super tanks, spider-type follower combat robots, etc.

The new assault rifle is also one of the results here. Production of new charged light machine guns and heavy machine guns is also about to be produced.

The weapons and equipment that are still under development, the external skeleton has entered the final stage, and there are only a few problems left, which can meet the requirements of actual combat after being solved.

But even so, these weapons under development also opened Wang Zhentao's eyes.

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Qin Mushan and Wang Zhentao came this time, and they stayed in the Steel Castle for a total of 7 days, and when they went back, they were still in love.

And the time soon entered the second half of April, and the lively spring sowing began.

People are full of enthusiasm to complete the sowing of more than one million acres of land in the shortest possible time.

However, a sudden call for help shattered the rare peaceful life of the Iron Castle during this time.

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"What! An army of corpses is closing in on you? Receiving a call from Du Mei in the oil city, Chen Yuan was very surprised.

"Yes, Chief Chen!" Du Mei said anxiously: "According to our scouts' reports, the zombies are very fast, and they are less than 40 kilometers away from us. It is expected to arrive at our city in about an hour and a half. With so many zombies, it's hard for us to resist! It's too late to retreat, and people who don't have a car can't escape the pursuit of zombies at all! Therefore, please also ask Chief Chen Bao to send troops to rescue us for the sake of our 100,000 compatriots! Afterwards, I Du Mei must have something to repay. ”

Chen Yuan thought for a moment and asked, "Where did these zombies come from?" Haven't all the zombies around your Oil City been cleaned up? In addition to Daqing City, there is a nearby county, but these two places are more than 80 kilometers away from you, why would the zombies suddenly kill you? ”

Although the oil city where Du Mei and her family are located also belongs to Daqing, it is the most remote area of Daqing and one of the newly developed oil fields. It's remote. Although it is also possible that Oil City was discovered by the zombies in these two places, it is also possible that they have traveled long distances. But the timing was wrong.

According to Chen Yuan's experience, the zombie siege in the Northeast will mainly be selected in summer and autumn. Because at this time, zombies are most active.

A few will choose to do so in winter, when the rivers and lakes freeze and zombies can easily rush from the ice to the city where the human survivors live. But at this time, zombies are affected by the cold and move slowly, so many zombies will also choose to hibernate.

Very few zombies choose to launch a large-scale offensive in the spring. At this time, the snow and ice had just melted, and it was muddy everywhere, making it very difficult for zombies to walk.

So it's wrong for the zombies to choose this time to attack Oil City.

And Du Mei immediately replied: "The zombies are coming from the direction of Daqing." They should be attracted by a fleet of vehicles that come to buy gas. ”

"Attracted by the convoy that came to buy gas!" Chen Yuan felt a little incredulous and asked, "Is it on the highway?" ”

Steel Fort also often goes to the oil city to buy oil, and also takes the highway from Daqing City to the oil city. Chen Yuan personally walked through it when he went to the Spring Market in February. But Chen Yuan was puzzled that the places that this highway passed through within the scope of Daqing City were mainly factories, and there was not much population at all, so how could it attract the corpse generals!

Sure enough, Du Mei replied: "No, it's on the national highway!" ”

She anxiously explained: "We have always sent people to monitor the movement in the direction of Daqing. Two and a half hours ago, our scouts reported that they had spotted a convoy coming from the west of Daqing, bypassing the city of Daqing from north to south, in the direction of our oil city. Unfortunately, one of their tankers seemed to have gone wrong in the process and exploded. Then it alarmed the zombies in Daqing City. They followed the convoy straight towards us. ”

"That's even weirder!" Chen Yuan frowned and said, "Why don't they go from the highway?" And shouldn't the tanker trucks that come to buy oil be empty? How could an explosion occur? ”

Du Mei was startled, and suddenly realized something, she stammered, "You...... You mean, they did it on purpose! ”

Chen Yuan didn't answer, and continued: "Have you tried to send someone to inform this convoy and ask them to drive elsewhere and lure the zombie army away?" ”

Du Mei immediately said: "It's sent, but our scouts report that it's useless." That's why we're asking you for help until now. ”

Chen Yuan asked, "Do you have any specific reasons?" ”

Du Mei was stunned for a moment and replied, "No...... Didn't say. I was nervous, so I didn't ask that much detail. ”

Chen Yuan felt that something was wrong in this matter, and immediately said, "Then ask again!" ”

"Yes...... But we've just lost contact with the scouts on the front! ”

Chen Yuan's heart sank, and then asked, "Then have you asked for assistance in the direction of Xinha City?" They are only a little more than a hundred kilometers away from you, and they will arrive faster than we do. ”

"A plea for help has been sent to them, and they say that they will start preparing as soon as possible and send troops as soon as possible. Chief Chen Bao, what is your reply? ”

At this time, Du Mei's tone was already a little cold, she seemed to feel that Chen Yuan had wasted so much time asking questions, and she didn't want to send troops to rescue at all.

However, in the next second, Chen Yuan didn't seem to hear the contempt in Du Mei's tone at all, and said, "We will send troops immediately." But it's three hours from us at the earliest. So until then, you have to find a way to hold on to it. ”

Chen Yuan said: "It's really too late to escape, and it takes an hour or two for 100,000 people to leave the city." What you have to do now is to immediately send some people to destroy as much as possible the roads and bridges in the direction of the zombies, so that you may be able to delay the zombies for a while. ”

"Also, I remember that you didn't dig a moat under the city? Pour gasoline on the water beforehand, and when the zombies attack the city, light it. In short, do everything you can to hold off the zombies as much as possible. Do you understand? ”

Du Mei couldn't react for a while, and stammered back: "Ming...... I see! ”

Chen Yuan continued: "Moreover, I estimate that even if the zombies arrive under your city, it will take a while to arrange their troops. Maybe it will be able to support us or the troops of Xinha City to arrive. But you only have one wall in Oil City, and that's a big problem. So you have to explain, no one can give up the city wall lightly, once the city wall is occupied, there will be a large number of zombies pouring into your oil city in an instant! The consequences will be severe. ”

"Yes!" At this time, Du Mei suddenly felt as if she had found a life-saving straw, and she felt a little obedient.